On Tuesday, April 14, 2015 at 9:16:30 PM UTC-4, Clay wrote:
"So the next consideration is switching in flight. Same concerns apply...."

Yikes, I switched from 2 lead acids to 2 LFPs, and I seriously doubt I have low voltage drop diodes in there. Is this like a Schottky Diode? https://www.sparkfun.com/products/10926. I take it the BMS or whatever it's called in the K2s doesn't manage this. Thanks for the heads up Evan.

You want to use components rated for more than one amp :-), but right idea. I don't have specific recommendations, but troll the Mouser(.com) catalog or equivalent.

Trying to get good data on what these bms boards do is tough (or was, last I looked). But most will source quite a bit of current. DC doesn't switch worth a crap either... interrupting a high current DC load is *really* hard on switch contacts and best avoided.

-Evan / T8